Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-14851-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-14851-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Sources of black carbon at residential and traffic environments obtained by two source apportionment methods
Sanna Saarikoski
CORRESPONDING AUTHOR
Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, 00101, Finland
Jarkko V. Niemi
Helsinki Region Environmental Services Authority (HSY), Helsinki, 00066, Finland
Minna Aurela
Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, 00101, Finland
Liisa Pirjola
Aerosol Physics Laboratory, Physics Unit, Tampere University, Tampere, 33014, Finland
Department of Automotive and Mechanical Engineering, Metropolia University of Applied Sciences, Vantaa, 01600, Finland
Anu Kousa
Helsinki Region Environmental Services Authority (HSY), Helsinki, 00066, Finland
Topi Rönkkö
Aerosol Physics Laboratory, Physics Unit, Tampere University, Tampere, 33014, Finland
Hilkka Timonen
Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, 00101, Finland
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Latest update: 20 Nov 2024
Short summary
This study presents the main sources of black carbon (BC) at two urban environments. The largest fraction of BC originated from biomass burning at the residential site (38 %) and from vehicular emissions (57 %) in the street canyon. Also, a significant fraction of BC was associated with urban background or long-range transport. The data are needed by modelers and authorities when assessing climate and air quality impact of BC as well as directing the emission legislation and mitigation actions.
This study presents the main sources of black carbon (BC) at two urban environments. The largest...
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